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Topic: How to plot functions
Replies: 5   Last Post: Mar 11, 2013 1:41 AM

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Dr. Peter Klamser

Posts: 23
Registered: 6/11/11
Re: How to plot functions
Posted: Mar 11, 2013 1:41 AM
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You must use patterns, ad minim an empty pattern, defining a function.
f[c_]=c x^2 works fine.
f[c_,x_]=c x^2
Plot[ f[3,x], {x, -10, 10} ] works even better suggests

2013/3/10 radres <>:
> Hi,
> Let's say I've defined a function f[c]=c*x^2
> when I try to plot this directly,
> Plot[ f[3], {x, -10, 10} ]
> it doesn't plot anything.
> But when I assign function to a variable,
> v1=f[3]; Plot[v1, {x, -10, 10}]
> then there is no problem. But I dont want this. Is there any way to plot directly from a function?

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